jcapshaw

Google released a new way to notify them of duplicate content so that it is not indexed and penalized. http://googlewebmastercentral.blogspot.com/2009/02/specify-your-canonical.html
This plugin allows for you to link to another post or your home page from each post or page that is written letting Google know it is duplicate content.
This is a stable version.

Duplicate Content Link

Allows you to tell Google, Yahoo, and MSN if another page is the canonical, real URL to avoid duplicate content penalties.

davidpean

Add ESPN Headlines from a wide variety of sports to your blog. Easily choose your favorite sport and enhance your sidebar 
with high quality up to date sports content.
This plugin utilizes the ESPN API, and has all the supported sports/leagues as they are made available.
Currently includes: NFL, NBA, MLB, NHL, NCAA Football, NCAA Basketball (Men’s and Women’s), Soccer (lots of global leagues), 
Golf, Tennis, Auto Racing, Boxing, MMA
Note: Requires ESPN Developer API Key. You must also agree to ESPN’s terms and conditions of using the API, 
including giving attribution (the logo will automatically appear at the bottom of the widget) and not having any 
ads within the page that includes their content.

ESPN Headlines

A simple widget to display the latest ESPN content by sport and league.

Duplicate Content Link vs ESPN Headlines